Spracherkennung für: .test vermutete Sprache: SQL {SQL[112] ABAP[84] Lisp[36]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_partition.inc
#
# MDEV-31975: UCASE(varchar_col)=... not handled for partition tables
#
set
@tmp_switch_sarg_casefold=@@optimizer_switch,
optimizer_switch='sargable_casefold=on';
create table t1 (
s1 varchar(15) collate utf8mb3_bin,
s2 varchar(15) collate utf8mb3_general_ci
) partition by key (s2) partitions 4;
insert into t1 values ('aa','aa'),('bb','bb');
explain format=json select * from t1 where upper(s2)='AA';
explain format=json delete from t1 where upper(s2)='AA';
explain format=json update t1 set s1='aaa' where upper(s2)='AA';
drop table t1;
set optimizer_switch=@tmp_switch_sarg_casefold;
[Dauer der Verarbeitung: 0.15 Sekunden, vorverarbeitet 2026-10-08]